Noise Levels in Pepperell, AL | Find Quiet Neighborhoods With Our Sound Map
51 dBA
Average noise across Pepperell
Quiet office to normal conversation
75
Residents above the EPA 55 dBA threshold
26% of Pepperell residents
72 dBA
Loudest residential point
City bus interior
This map shows modeled outdoor noise across Pepperell at 100-meter resolution, combining road, aviation, and rail sources. Green areas measure below 45 dBA. Orange and red exceed the EPA's 55 dBA outdoor threshold linked to long-term health effects. Use the layer toggles to view each source on its own or all together.
What the numbers sound like
- 30 dBAWhisper
- 40 dBASoft rainfall
- 45 dBAQuiet suburban street at night
- 50 dBAQuiet office
- 55 dBAEPA outdoor threshold: light traffic 100 ft away
- 60 dBANormal conversation an arm's length away
- 65 dBABusy restaurant
- 70 dBAHighway traffic 50 ft away
- 80 dBACity bus interior
Population Above the EPA Outdoor Threshold
The EPA's 55 dBA outdoor reference level is a common benchmark for residential noise exposure, especially for activity interference, annoyance, and long-term community noise concerns. About 75 Pepperell residents, or 25.9%, live above that level. By land area, 8.3% of Pepperell is above 55 dBA.
91.7% below 55 dBA
8.3% above 55 dBA
See how noise in Pepperell compares to similar-sized cities.
Noise by Part of Pepperell
Average noise levels for Pepperell residents, grouped by direction from the center of Pepperell. Eastern Pepperell carries the highest population-weighted average; Southern Pepperell carries the lowest. Just 3% of residents in Southern Pepperell live in blocks above the EPA's 55 dBA threshold, a fifth of the share in Eastern Pepperell.
Eastern Pepperell
57.3 dBA · Moderate-loud
Normal conversation an arm’s length away
Northern Pepperell
53.7 dBA · Moderate-loud
Quiet office to normal conversation
Southern Pepperell
46.0 dBA · Mostly quiet
Quiet suburban street at night
Eastern Pepperell sounds about 119% louder than Southern Pepperell to the human ear, a 11.3 dBA gap. Every 10 dBA roughly doubles perceived loudness. Within any of these directions, two homes a quarter mile apart can still differ by 10 or more dBA depending on how close they sit to a major highway.
How far back from do you need to be?
produces an estimated 72 dBA at its loudest centerline points. Noise drops logarithmically with distance, with the exact rate depending on what's between you and the road. Tree cover, walls, terrain, and pavement type all matter. At roughly a quarter mile back, traffic fades into the noise level of a soft rainfall.
At source
72 dBA
City bus interior
165 ft
58 dBA
Normal conversation an arm’s length away
330 ft
50 dBA
Quiet office
660 ft
42 dBA
Quiet suburban street at night
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 27% of Pepperell sits under tree canopy (about average for cities) and roughly 26% is impervious surface like pavement and rooftops. Both are folded into the per-place decay rate above. Heavier canopy pulls noise down faster with distance; impervious surfaces slow the drop.
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How Noise Is Distributed Across Pepperell
The bar chart below shows the share of Pepperell residents in each noise band. About 96% of residents live below the EPA's 55 dBA threshold, and roughly 0% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Pepperell Compares
Pepperell sits the highest among the peer group. Below: how Pepperell's average outdoor noise and share of residents above the EPA threshold compare with Thornton, Sturkie, Powledge, and Milltown.
Average noise level (dBA)
Pepperell's 51.4 dBA pop-weighted average is the highest among the peer group. Alabama as a whole averages 49.0 dBA and the U.S. averages 52.0 dBA. Both are lower than Pepperell because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 25.9% of Pepperell residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's more than any of its peer group. Measured by land area instead, 8.3% of Pepperell's footprint sits above 55 dBA, against a Alabama average of 20.0% and a national average of 28.1%.
What This Means if You're Moving to Pepperell
- Distance from highways matters more than the neighborhood name. Two homes in the same zip code can differ by 20 dBA if one sits 100 meters from and the other 500 meters away. The model captures this at 100-meter resolution, so noise exposure changes block by block.
- Tree canopy can help reduce modeled noise exposure. Roughly 27% of Pepperell is under tree cover (about average for cities), and the dominant land cover is low-intensity developed land. Both are measured from federal USDA Forest Service and USGS satellite imagery at 30-meter resolution. Streets with 60% or higher canopy show 3 to 5 dBA lower noise than comparable streets with bare ground or pavement, which is why the per-place decay rate above already accounts for it.
